Cobra 29 LX LE Mode d'emploi

Contents

Features .........................................................................................................1

The CB Story .................................................................................................A1

FCC Regulations

FCC Warnings

Included Accessories

Controls & Indicators ................................................................................A2

Our Thanks to You .....................................................................................A3

Customer Support

Installation

Location ....................................................................................................2

Mounting and Connection ................................................................2

Antennas

CB Antenna ..............................................................................................6

Marine Installation ................................................................................6

Ignition Noise Interference....................................................................7

Operating Your 29 LX LE

Turning On Your CB .............................................................................. 8

Setting Channel Selector .................................................................... 9

Calibrate For SWR (Standing Wave Ratio) .................................... 10

To Receive ................................................................................................ 12

Selecting a Channel .............................................................................. 13

S-Meter ...................................................................................................... 13

To Transmit .............................................................................................. 14

Setting Dynamike® ............................................................................... 15

Menu Mode ............................................................................................. 16

Radio Check Mode ................................................................................ 17

Setting Display Color Mode ............................................................... 18

Setting Brightness Mode .................................................................... 19

Setting Contrast Mode ........................................................................ 19

Weather Information ............................................................................ 20

Weather Channels ................................................................................. 21

Weather Alert Mode ............................................................................. 22

Setting Weather Alert Scan................................................................ 22

Setting Weather Auto Scan ............................................................... 22

Key Tones Mode .................................................................................... 23

Software version/Factory Settings .................................................. 23

NB-ANL/Off (Noise Blanker/Automatic.......................................... 24

Noise Limiter Switch)

RF Gain Control ......................................................................................24

Program Memory Channels ............................................................... 25

Scan/Memory Scan ............................................................................... 25

Scan CB Channels .................................................................................. 29

Scan Memory Channels ...................................................................... 26

Dimmer Control ..................................................................................... 26

Setting Squelch ...................................................................................... 26

S/RF Meter ................................................................................................ 28

External Speaker .................................................................................... 29

PA (Public Address) ............................................................................... 30

Home And Office Set-Up .................................................................... 32

Temporary Mobile Set-Up .................................................................. 33

How Your CB Can Serve You .................................................................34

A Few Rules You Should Know ........................................................34

Channel 9 Emergency Messages .....................................................34

CB 10 Codes .............................................................................................36

Frequency Ranges .....................................................................................38

29 LX LE Specifications ............................................................................39

Warranty Information ..............................................................................40

Optional Accessories ................................................................................41

Optional Accessories Order Info .........................................................42

If You Need Service/Trademark Info ................................Back Cover

Features of This Product

• Selectable 4-Color LCD Display

• 10 Weather Channels

• Weather Scan

• Emergency Weather Alert

• 40 CB Radio Channels

• 40 Channel Scan

• Memory Channels

• Channel Frequency Read-Out

• Radio Check Diagnostic

• Heavy-Duty Dynamic

Microphone

• Full 4 Watts AM RF Power Output

• SWR Calibration Meter

• Instant Channel 19 and 9

• Front Panel 4-Pin Microphone

Connector

• Switchable Automatic Noise

Limiter & Noise Blanker

• Adjustable Dynamike Boost

• Tactile Controls

• 9 Ft Mic Cord

• Programmable Dimmer Control

• RF Gain

How to Use Your Cobra 29 LX LE

Installation

Location

Mounting and

Connection

Mounting and Connection

Hold the radio with the mounting bracket in

the exact desired location. If there is no inter-

ference, remove the bracket and use it as a

template to mark the location for the mount-

ing screws.

Location

Plan location of transceiver and microphone

bracket before starting the installation.

Select a location that is convenient for operation,

yet does not interfere with the driver or passenger.

The transceiver is usually mounted to the under-

side of the dash with the microphone bracket

beside it.

Note

The transceiver is held in the

universal mounting bracket by

two thumbscrews which allow

for adjustment at a convenient

angle.

The bracket includes two self-

tapping screws and star wash-

ers. The mounting must be

mechanically strong, conve-

niently located.

Drill the holes and secure the bracket.

Installation

continued

Connect the antenna cable plug to the recep-

tacle marked “ANT” on the back of the unit.

Installation

Note

Before installing the CB radio,

visually check the vehicle’s

battery connection to deter-

mine which terminal, positive

or negative, is grounded (pos-

itive is the larger of the two)

to the engine block (or chas-

sis). A negatively grounded

vehicle has its negative lead

grounded to the chassis.

Note

Connecting to an accessory fuse

prevents the unit from being left

on accidentally, and also per-

mits operating the unit without

running the engine.

Note

In positive ground vehicles the

red wire goes to the chassis and

the black wire is connected to

the ignition switch.

Note

When connected to an acces-

sory fuse, unit will self test

the emergency weather alert

automatically when ignition

is turned on. Turns itself on & off.

In a negative grounded vehicle, connect the

red lead of the DC power cord to an accessory

12 volt fuse.

Connect the black lead to the negative side

of the vehicle. This is usually the chassis. Any

convenient location with a good electrical

contact (remove paint) may be used.

Plug power cable into back of unit marked

“Power”. Be sure to observe polarity markings.

Mount the microphone

bracket on either side

of the unit (driver’s left)

using two screws sup-

plied. Bracket should be

placed under the dash

so microphone is readily

accessible.

Attach the 4-pin microphone cable to

receptacle on front of unit and install unit

in bracket securely.

Installation

Note

If microphone is not

connected, audio will not

be heard at speaker.

Antennas

CB Antenna

Since the maximum allowable power output of

the transmitter is limited by the FCC, the antenna

is critical in affecting transmission distance. Only a

properly matched antenna system will allow maxi-

mum power output. Cobra loaded type antenna

models are highly recommended for most instal-

lations. For models with Weather Feature (WX),

a Dual Band (Center Load/Base Load) antenna

is recommended. Consult your Cobra dealer for

further details, or call 773.889.3087 and speak to a

Cobra representative.

Marine Installation

The transceiver will not operate at maximum

efficiency in a boat without a ground plate,

(unless it has a steel hull). Before attempting

installation , consult your dealer for information

regarding an adequate grounding system and

prevention of electrolysis between fittings in the

hull and water.

CB Antenna

Note

For optimum performance in

passenger cars the ideal anten-

na location is on the center of

the roof. Second choice is on the

center of the trunk.

Note

Because many newer trucks

feature fiberglass door skins,

the outside mirror must be

grounded to the chassis via a

ground strap, if the antenna is

mounted on the mirror bracket.

Note

3-way Combination Antennas

are also available which allow

operation of all three bands

(AM-FM & CB), using a single

antenna. However, this type

of antenna usually results in

less than normal transmit and

receive range when compared

to a standard-type “Single

Band” CB antenna. Call 773-

889-3087 for further informa-

tion.

A standard antenna connector is provided

on the transceiver for easy connection.

Ignition Noise Interference

Use of a mobile receiver at low signal levels is

normally limited by the presence of electrical

noise. The primary source of noise in automo-

biles is from the alternator and ignition system.

Typically, when signal level is adequate, the back-

ground noise does not present a serious problem.

Also, when extremely low level signals are being

received, the transceiver may be operated with

the vehicle’s engine turned off. The unit requires

very little current and therefore will not signifi-

cantly discharge the vehicle’s battery.

Even though the Cobra 29 LX LE has an auto-

matic noise limiter, in some installations ignition

interference may be high enough to make good

communications impossible. Many possibilities

exist and variations between vehicles require

different solutions. Consult your Cobra dealer or

a 2-way radio technician for help in locating the

source of a severe noise.

Press the CB/PA/WX button to change modes.

Operation

Turning On

Make sure the power cord, antenna and micro-

phone are connected to their proper connectors

before starting.

SWR/CAL

NB/ANL

VOL SQ DYNAMIKE R

F GAIN DELTA TUNE T BACK SWR

CAL

OFF MIN MIN OFF

MAX

ESC

MEM SCAN

S/RF

SIG

+30dB

1.5 23CAL

3579

SWR TX

NB/ANL

MEM WX !

ANL

S/RF

SWR

CAL

CH 9/

CB/WX /

DIM

SCAN

Rotate the On/Off Volume knob clockwise to

turn unit on and adjust to a normal listening

level.

Operation

Setting Channel

Selector

Setting Channel Selector

Select one of forty channels and adjust

volume. The selected channel (1 through

40) will be indicated by the readout directly

above the channel selector knob

SWR/CAL

NB/ANL

VOL SQ DYNAMIKE RF G

OFF MIN MIN

S/RF

SIG

+30dB

1.5 23CAL

3579

SWR TX

NB/ANL

MEM WX !

ANL

S/RF

SWR

CAL Note

Press CB/WX/PA to select CB,

weather channels or PA (public

address) modes.

Operation

Calibrate For

SWR (Standing

Wave Ratio)

Press SWR/CAL button to select CAL.

Calibrate for SWR (Standing Wave Ratio)

SWR calibration is done to properly adjust the

length of the antenna and to monitor the quality

of the coaxial cable and all RF connections.

This calibration is critical in order to achieve opti-

mum performance.

Select channel 20.

SWR/CAL

NB/ANL

VOL SQ DYNAMIKE

OFF MIN

S/RF

SIG

+30dB

1.5 23CAL

3579

SWR

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